Water

Physicist Avinash Kumar of Simon Fraser University stands beside the Mpemba effect apparatus.

The Physics of Why Hot Water Sometimes Freezes Faster Than Cold Water

For decades, physicists have debated whether the phenomenon exists and how to study it

Water runs from a hose into a hay bale pool.

Seven Ideas for Do-It-Yourself Backyard Pools

Build a personal oasis with everything from hay bales to scrap wood to a shipping container

The Maya city of Tikal thrived for hundreds of years but was abandoned in the ninth century A.D.

Why Did the Maya Abandon the Ancient City of Tikal?

New research suggests mercury and toxic algae poisoned the settlement's reservoirs

This month's selections include The Beauty and the Terror, Feasting Wild and Splash.

The Dangers of Space, Military Rivals and Other New Books to Read

These five recent releases may have been lost in the news cycle

A storm on the Great Salt Lake in Utah exposed the wreckage of what may be a 100-year-old boat.

Storm Unearths Wreck of Century-Old Boat in Utah's Great Salt Lake

The vessel may belong to a fleet used to construct and maintain a railroad causeway that crosses the briny body of water

Sampling wastewater could give scientists a new way to track the spread of the new coronavirus.

How Wastewater Could Help Track the Spread of the New Coronavirus

The virus that causes COVID-19 is unlikely to remain active in sewage, but its genetic material can still help researchers identify at-risk communities

A large sandstone turtle unearthed at last week at the Angkor Wat temple complex

Archaeologists Discover Ancient Stone Turtle in Drained Angkor Reservoir

The reservoir houses the remnants of a centuries-old temple now undergoing excavation

The wreckage of a mid-19th century ship washed ashore north of Ludington, Michigan, on April 24.

High Waters in the Great Lakes Reveal Two Centuries-Old Shipwrecks

In the month of April alone, the remnants of two historic vessels washed up on Lake Michigan's shores

In the Catalina Mountains in southern Arizona, forests struggle to keep up with recent increases in drought and wildfire activity, which are expected to continue due to human-caused climate change.

The American West May Be Entering a ‘Megadrought’ Worse Than Any in Historical Record

A new study of ancient climate has a dire warning about today's dry conditions

Once fish were captured in watercourts, they were likely harvested with nets or speared.

In Ancient Florida, the Calusa Built an Empire Out of Shells and Fish

New research suggests the civilization used huge enclosures to trap and stockpile live fish to support its complex society

Surfers ride the bore tide at Turnagain Arm.

How to Surf Alaska's Bore Tide

Turnagain Arm offers surfers an experience they can't get anywhere else in the country

Angkor Wat in Cambodia

Angkor Wat May Owe Its Existence to an Engineering Catastrophe

The collapse of a reservoir in a remote and mysterious city could have helped Angkor gain supremacy

On Sunday, a National Weather Service employee snapped a photo of two ice volcanoes erupting on the shores of Lake Michigan.

Why Are Ice Volcanoes Erupting on the Shores of Lake Michigan?

They’re not really volcanoes. But they do spew freezing cold water, and that’s very cool

40 million people rely on the Colorado River for water, but its flow is falling by more than 9 percent with every 1.8 degrees Fahrenheit rise in temperature.

The Colorado River Is Shrinking as Temperatures Rise

River flow could drop by 19 to 31 percent if carbon emissions continues at their current pace

At Pablo Escobar's former hacienda, tourists are warned about the dangerous presence of an expanding hippo population.

Pablo Escobar's Pooping Hippos Are Polluting Colombia's Lakes

A new study suggests the hulking creatures are changing local water bodies with their bathroom habits

Mexico City Is Proposing to Build One of the World's Largest Urban Parks

More than twice the size of Manhattan, the park could restore the water systems of the region and serve as a model for cities around the world

Pablo Picasso, Nature Morte (1921)

This Picasso Could Be Yours for Just Over $100

A charity raffle is selling the 1921 painting “Nature Morte” for a bonafide bargain

Although ammonoids died out around the same time as most dinosaurs, new computer models are revealing how these marine animals moved through the water.

Video Game-Inspired Models Demonstrate How Prehistoric Squid Relatives Swam Through the Seas

By simulating liquid flows around the shells of ammonoids, scientists study how these ancient animals moved

The New Croton Dam at Croton Gorge Park, about 40 miles north of New York City.

How New York City Found Clean Water

For nearly 200 years after the founding of New York, the city struggled to establish a clean source of fresh water

A general view shows the flooded St. Mark's Square, the Doge's Palace (L), the Lion of St. Mark winged bronze statue and the Venetian lagoon after an exceptional overnight "Alta Acqua" high tide water level, on November 13, 2019 in Venice.

Venice Declares State of Emergency as City Battles Worst Floods in 50 Years

The Italian city’s high-water mark reached 74 inches on Tuesday

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